pixel block

pixel block

A rectangular group of screen pixels. In the digital video world, the data are compressed in blocks of pixels to reduce transmission bandwidth and decompressed for display. When the incoming transmission signal is impeded on action scenes, the decompression circuit cannot keep pace, and some pixels momentarily display in an oversized grid on screen. See blocking artifacts.
References in periodicals archive ?
Data bits are embedded by altering the pixel block values such that the difference lies in the same range after modification [19].
Hence, a pixel block smoothness measuring function needs to be constructed to select appropriate pixel blocks.
The operation of LBP works on 3 x 3 pixel block consisted of eight neighborhood pixels and converting their values into the binary 0 or 1 by comparing with the value of their center pixel of the pattern.
Cross-section of a white 10x10 pixel block on black background before/after application of a 15x15 Gauss blur filter
The expected production involves six departments of French metropolitan territory whose images were acquired by shooting (PVA) performed with a pixel block 35 cm during summer 2013.
Each pixel block costs GBP5 and visitors to the site can upload logos and create a link to their own website.
The transformed coefficients are encoded using a zigzag sequence of each 8 x 8 pixel block of the image and are thus represented by a stream (linear string of data) of numbers (eg, 19, 13, 13, 9, 11, 45, etc.
MBS-LBP represents an LBP operator with a pixel block that measures SxS.
The blocks are equally scrambled across the image for applying blowfish algorithm on the random number generated by generator for each pixel block.
s work by using a dynamic pixel block partition scheme and provided a better performance than [16].
i] uses the average value of four adjacent pixels to get B x B pixel block [[?
These sub-images were partitioned in non-overlapping 2x2 pixel blocks.